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intake issue

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Old 05-09-2006, 05:12 PM
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intake issue

I have a AT rx8 with k&n version two intake
At first i had K&N version one intake
either way with both intakes whenever i go uphill or sometimes when i get around 5k rpm my car bogs down. sounds like crap, almost like too much air is coming in or just the car cant take it. I dont have my stock intake to put on and test. i dont know if its just the K&N intake and getting a aem or other intake would solve it. But its real bad and sounds like crap at high rpm

any ideas
Old 05-09-2006, 05:25 PM
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That symptom sounds like the CAT failing.
Old 05-09-2006, 05:39 PM
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what causes the CAT to fail

i had a lot of service done before my warranty went out

new battery, starter, plugs , alternator

i dont think its the CAT but maybe
Old 05-10-2006, 12:10 AM
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Yep it's the CAT.

Mike go up a steep hill in Anaheim or go to Mount Baldy. See what happens when you go up hill.

If it craps out your a lucky bastard that can get an RP mid pipe with CAT.

Then you will have one bad *** CAR.

Too rich a fuel mixture from factory is causing CATS to fail. Especially AT as you can't Rev them high enough to blow ot the crap. The AT's shift at too low a RPM to make the engine, plugs and CAT to work properly.

Hell the AT's overheat like mad in Nevada and Texas.

2) Check the installation. If looks good check the throttle body cap. Then buy CARB cleaner or Starter fluid and spray the vaccum lines. If it finds a leak you will see the reaction in the car.

Last edited by Razz1; 05-10-2006 at 12:14 AM.
Old 05-10-2006, 10:16 AM
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how do i check the install
and how much is a aftermarket cat
Old 05-10-2006, 01:03 PM
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I think the CAT warranty is for a 120K mi. Somone correct me if i am wrong.
Old 05-10-2006, 01:10 PM
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really
i thought it was 50k warranty
anyways i have a shop that does custom exhaust and stuff
maybe they can clean out the CAT for me or make a custom one
Old 05-10-2006, 01:17 PM
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10 years or 120,000miles for catalytic converter.Get your factory one for free and the pay for whatever you want
Old 05-10-2006, 01:29 PM
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well thanks guys i didnt know
thats good news
Old 05-11-2006, 12:30 AM
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Originally Posted by mikeb
how do i check the install
and how much is a aftermarket cat
Look visually at the intake the start tugging lightlt on the components to see if something is loose.

395 plus shipping for the best CAT That's the RP CAT

It might be tough getting a new factory CAT since Mazda warrenty is 50k.

Tell them per the EPA that it must last 10 years or 100,000 miles.

You will like the extra power from the RP CAT. Remember it's loud.
Old 05-11-2006, 04:25 AM
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b&b supercat is only 280 but out of stock everywhere
i want a cat now
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